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15 Cards in this Set

The 5 segmental nerves from the sacral part of the spinal cord. The 1st four emerge through the anterior sacral foramina and the 5th from between the sacral foramen and the coccyx

Sacral Nerves

not plexus

A network of motor and sensory nerves formed from 4th and 5th lumbar and by the 1st-3rd sacral nerves. They converge toward the lower part of the greater sciatic foramen and unite to become a large flattened band most of which continues into the thigh as sciatic nerve

Sacral plexus

plexus

A network of nerves formed by the ventral anterior primary divisions of the 1st 3rd and the greater part of the 4th lumbar nerves L1-L4

Lumbar plexus

non

Five pairs of spinal nerves rising in the lumbar region of the vertebral column

Lumbar nerves

non

12 pairs of spinal nerves emerging from the spinal cord at the level of the thorax including 11 intercostal nerves and one subcostal nerve; nonplexus; 1st 2 intercostal innervate upper limb and thorax next four supply thorax only; lower 5 supply walls of thorax and abdomen; Each subcostal innervates abdominal wall and skin of a buttock

Thoracic Nerves

chest

The network of nerves formed by the ventral primary division of the first 4 cervical nerves C1-C4

Cervical plexus

superior to thoracic plexus

Eight pairs of spinal nerves that arise from the cervical segments of the spinal cord, from above atlas to below 7th vertebra. 1st 4 supply head and neck last 4 innervate upper limbs, scalp & back

Cervical nerves

superior to thoracic nerves

A network of nerves that originate in the 5th-8th cervical and 1st & 2nd thoracic spinal nerves. It innervates the muscles and skin of chest shoulders and arms

Brachial Plexus

brake

The area of the skin that provides sensory input to one pair of spinal nerves or to cranial nerve V

Dermatome

non

Dorsal roots are strictly

Sensory

sensor or motor

The anterior rami of spinal nerves, except for T2-T12, for networks of nerves called

Plexus

P

These plexus nerves supply the anterolateral abdominal wall, external genitals, and part of the lower limbs

Lumbar plexus

lower back

These muscles supply the skin and muscles of the head, neck and upper part of shoulders; they connect with some cranial nerves and innervate the diaphram

Cervical Plexus

complicated neck

_______ ______typically are connected with the spinal cord by a posterior root and an anterior root.